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https://issues.apache.org/jira/browse/AMBARI-10645?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14506242#comment-14506242
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sam liu commented on AMBARI-10645:
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Could any expert please help assign this jira to me? I already made a patch and
did necessary tests to ensure it works as expectation. So I attach the patch
here and also opened a review request: #33428 .
Thanks!
> Adjust block replication for clusters with less than 3 DataNodes
> ----------------------------------------------------------------
>
> Key: AMBARI-10645
> URL: https://issues.apache.org/jira/browse/AMBARI-10645
> Project: Ambari
> Issue Type: Improvement
> Components: ambari-server
> Affects Versions: 2.2.0
> Reporter: sam liu
> Attachments: AMBARI-10645-001.patch
>
>
> When we install on a cluster with less than 3 DataNodes, the replication
> factor is set to 3 anyway. It does not make sense. We should change this
> value to a lower number to avoid missing replicas(for example, if there is
> just one DN, set the replication factor to 1).
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